Patent GB-589858-A (GB)
Title: Improvements in and relating to photographic copying apparatus and copying records
IPC: G03B27/62
Filed: 1944-01-07
Abstract: 589,858. Photographic copying apparatus. KODAK, Ltd. Jan. 7, 1944, No. 324. Convention date, Jan. 8, 1943. [Class 98 (i)] Apparatus for copying records has a feeder adapted to feed records one at a time from the bottom of a face-down stack, means to invert the records and means to pass them continuously in front of a continuously driven photographic film camera. As shown, the cards stacked face downwards in hopper 66 are successively fed by a reciprocating picker 70 between rollers 89 into a guide member 90, then between rollers 103 and endless belts 123, and between wheels 98 and belts 123 to the drum 19 round which they are carried under the glass plate 30 constituting the copying position (being illuminated by a bank of lamps 37 provided with a reflector 42) and then to a stripper 151 and abutment 149 by which they are located in vertical position against the movable front plate 142 of a stacker. Passage of a card through guide 90 operates a feeler to close a switch in series with a switch 208 operated by the rotating cam 81 in the picker drive to operate a magnetic counter. Bellcrank operated switches are located in the path of the cards round wheels 98 at an interval of about 1¢ card pitches to interrupt the control circuit either in the absence of cards or in the event of incorrect spacing. When the receiving stacker is full, the extension 147 opens the normally closed switch 153 in the control circuit. The camera comprises a supply film roll, a drum, a take-up roll and an objective, and normally open switches are closed if the camera is not in proper position, if the supply roll is empty, if the take-up roll is full, and if there is loss of tension in the film between the rolls. The camera is continuously driven by a belt from a pulley driven by the synchronous motor operating the copying machine. The angular position of a card being discharged from the conveyer may be varied by adjustment of either the pads 131 or set-screws. On manual stoppage of the machine or on stoppage due to a fault, the feeding means is stopped immediately, but the copying machine continues to operate until all the records therein have been photographed, a time-switch being provided in the control circuit to permit this continued operation for a sufficient time. A relay in the control circuit requires manual resetting to prevent continued operation after an intermittent fault. An audible or visual signal may be energized on occurrence of a fault. After loading of the supply roll of the camera, closure of the rear cover of the machine operates a switch to complete a circuit through a cam-operated switch and winding motor to wind a predetermined length of leader on to the take-up roll, whereupon the cam-operated switch is opened and a second cam-operated switch closed. On opening the cover on the exhaustion of the supply roll, a predetermined length of trailer, which may be longer than the leader, is wound on to the film on the take-up roll. A starting switch is provided to permit starting of the machine in the absence of cards in the conveyer. Specifications 589,859 and 589,860 are referred to.